초록 ▼

Segmented displays are provided on an automobile windshield by stacked or linearly arrayed holograms containing separate display segments selectively illuminatable by different wavelengths of light to provide a variable display. Each hologram is edge illuminated by a wavelength which differs from th

Segmented displays are provided on an automobile windshield by stacked or linearly arrayed holograms containing separate display segments selectively illuminatable by different wavelengths of light to provide a variable display. Each hologram is edge illuminated by a wavelength which differs from the wavelength used to illuminate adjacent holograms to provide, for example, a seven segment or bar graph display. A second embodiment provides a single hologram containing a seven segment digit with light beams selectively directed on the digits to display desired numerals.

대표청구항 ▼

A substantially transparent display comprising: a plurality of holographically recorded segments attached to an automobile windshield and coordinately positioned such that selective illumination thereof provides a composite display, the composite varying in accordance with the selective illumination

A substantially transparent display comprising: a plurality of holographically recorded segments attached to an automobile windshield and coordinately positioned such that selective illumination thereof provides a composite display, the composite varying in accordance with the selective illumination; and means for selectively illuminating said segments to provide a variable holographic display.